Rat lungworm disease is not associated with an insect. It is a parasitic worm. It is spread from snails and slugs to rats. We only get it if we ingest raw snails or slugs that carry the parasite. It's not a new disease.
It's true no place is safe. We live in an environment full of living things, many of which are not good for our health. Many are. Bacteria in our intestines are important in processing the vitamin K complex which is a essential in regulating clotting. And yet a different bacterial infestation in the stomach is associated with ulcers and lymphomas.
We are just getting better at looking for pathogens, describing them, and communicating world-wide about their potential for harm and possible cures.
We should be very thankful for the work that all these surveillance and healthcare organizations do.
Actually, rat lungworm disease can be gotten many ways including from water and eating lettuce.
https://www.foodsafetynews.com/2019...e-to-cause-rat-lungworm-infections-in-hawaii/